Automobile tire-pump.



F, A. DQWLER.

AUT QMOBILE TIRE PUMP. APPLICATION FILED JULY 19. 19:2.

1,137,956- Patented May 4, 1915.

: -"EN TOR F DOW/9K A TTOHA/EY i the motor in the proved details ofpiston. Fig. IV

, 1 designates a lifting 2 and toothed post 3.

FRANK A. DOWLER, 0F LAWRENCE, KANSAS.

AUTOMGBILE TIRE-PUMP.

Application filed July 19, 1912.

To ail'ulzom 1'2 :22 (13 concern Be it known that I, FRANK A. DowLER, acitizen of the" United States, residing at awrence. in the county ofDouglas and State of Kansas. have inwented certainnew and usefulImprovements in Automobile Tire-Pumps; and I do declare the following tobe a full, clear, and exact-description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same, reference being had to the accompanyingdrawings, and to theletters and figures of reference marked. thereon, 1 5.

which form a part of thisspecification.

llIy invention relates to tire pumps, andhas for its principal object toprovide a combination lifting jack and pump whereby a driving wheel ofan automobile may be supported above-the ground and turned. by car tooperate the pump and furnish air for filling tires. In accomplishingthis object I have provided the imscribed and illustrated in drawings,where1n:

Figure I is a perspective view of the drivthe accompanying applicationof my improved tire pump thereto. Fig. II is a vertical section of thepump. Fig. III is a perspective view of the is a longitudinal section ofsame. Fig. V is asectional view of the lower end of the .pump. Referringmore in detail to jack comprising a base Slidably mounted on the post isa lifting member at, having a catch pawl 5, a handle 6, and a springpressed handle pawl 6, all of which may be of ordinary construction, andneed not be described in detail, as the jack, per se, forms no part ofmy present invention.

Revolubly mounted in a ournal I, at the top of the post i, is a sleeve8, having end flanges 9 for keeping it in the journal and having acentral channel 10 adapted for receiving'the outer end of a drivingwheel hub, a collar 11 being projected inwardly from the sleeve near itsouter end to fit over the cap of the hub to which the pump is applied.the collar 11 being preferably hexagonal or square to fitover agonal orsquarehub cap.

Projecting laterally from the outer flange Specification of LettersPatent.

,usual rings and with apertures 21 and 22, so that structure hereinafterde-' showing the 4 the parts the usual hex-- Patented May a, 1915.

Serial No. 710,370.

9 is an arm 12, having a stub shaft 12 thereon, andcrevolubly mounted onsaid stub shaft is the rod 13 of an air pressure pump 14, which is, inturn, 4 pivotally mounted upon a stud 15 that projects laterally fromthe lower end of the lifting member of the ack.

Rod 13 is slidably projected through the cap 16 of pump 12, and connectswith a piston 17 comprising heads 18-48, the former of which has studs19 rigidly fixed to and projecting from its face opposite that to whichthe pitman is connected,.while the latter is slidably mounted on thestuds, the outwardtravel of headl8 being limited by the heads 19 ofthestuds 19. a

Each of the pistons is provided with the I non-registering when thepiston is reciprocated in the pump barrel, andthe. heads moved into andout-of contact with each other, the apertures 21 and 22 will be openedand closed, as will presently be described.

Near the lower end of the pump barrel is a laterally and upwardlyopening channel 24, which terminates in a nipple 27 that opens from theside ofv the chamber and has a flexible tube 26oonnected therewith andadapted for connection with a tire, which it is desired to inflate.

In using the device the jack is applied to the wheel of an automobile byprojecting the jack collar 8 ,over the outer end of the hub so that thehub cap will seat-in the collar 11. The .wheel is then jacked from theground, the tube 26 connected with one 'ofthe tires on the car, or thetire of another car, and the motor started, the wheel to which the pumpis connected being turned through the differential gearing indicated bythe casing ,21, so that the locking of the hub cap on sleeve 11 andfrictional contact of the hub and the sleeve in the journal 7 willactuate the pump rod. I

As the pump rod descends, head 18, be ing retarded. by friction againstthe side of the pump barrel, remains stationary until the head 18 meetsit and carries it down-' ward, the meeting of the heads closing theapertures 21 and 22 to force air through the valve and through tube 26into the tire.

lVhen. the rod is lifted, head 18 remains spaced therefrom and the twoheads are carried upwardly with their inner faces space apart, so thatair mayv be admitted therethrough to the pump barrel from the top of thepump.

In orderthat the car may be raised Without binding the bearings of thedevice, I have provided the base with a crown so that a slight change inposition of the jack Will still'leave the parts in equilibrium. 7

Having thus described my invention, What I claim as new byLetters-Patent, is:

LA tire pump for automobiles, compris ing a base member, a movablemember adjustably supported on said base member, a sleeve revolublymounted in said movable member and adapted to receive the hub of a Wheelto support the weight of the'automobile and induce frictional contactbetween the Wheel hub and sleeve, a pump pivotally mounted on saidmovable member, and a therein and desire to secure memes crankarm onsaid,sleeve for abtuating said,

for automobiles comprisrected flange having an irregular, aperturedportion for operatively engagin the hub cap of the wheel, a pump pivotaly mounted on said movable member, and a crankarm on said sleeveoperatively connected with said pump In testimony whereof I afiix mysignature in presence of two Witnesses. v

FRANK A. DOWLER.

Witnesses:

E. H. MARSHALL, R. M. SUTTERS.

frictional contact between.

25- a movable member ad-

